Discomfort caused by the circumferential comfortable retainer (CCR) as a removable maxillary retainer.
10.4041/kjod.2010.40.5.325
- Author:
Jin Hugh CHOI
1
;
Cheol Hyun MOON
Author Information
1. Department of Dentistry, Chung-Ang University College of Medicine, Seoul, Korea. profchoi@cau.ac.kr
- Publication Type:Original Article ; Randomized Controlled Trial
- Keywords:
Removable retainer;
Distorted speech;
Discomfort;
Patient compliance
- MeSH:
Female;
Gagging;
Humans;
Orthodontic Appliances;
Palate;
Patient Compliance;
Surveys and Questionnaires;
Sensation;
Treatment Outcome
- From:Korean Journal of Orthodontics
2010;40(5):325-333
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
OBJECTIVE: The aim of this study was to illustrate the circumferential comfortable retainer (CCR) as a removable maxillary retainer with good potential patient compliance and to evaluate the discomfort of the retainers including distorted speech, gagging sensation and appliance discomfort. METHODS: Sixty-six orthodontic patients (male, 23; female, 43; mean age, 23.42 +/- 10.19 years) who received orthodontic treatment with fixed orthodontic appliances were randomly assigned to two groups after debonding, a conventional wraparound retainer (CWR) group that fully covers the palate with an acrylic plate and a highly polished surface, and a circumferential comfortable retainer (CCR) group which has a horseshoe shaped base plate with three folds on the anterior region. A questionnaire that had a visual analog scale (VAS) which consists of a 100-mm horizontal line with 2 end-points labeled "no discomfort" on the left and "worst discomfort" on the right, with regard to distorted speech, gagging sensation and discomfort, was administered to patients after 4 weeks of retainer wear. The Mann-Whitney test was used to test the hypothesis that there was no difference between the two retainers. RESULTS: Comparing distorted speech and discomfort, the CCR group significantly had lower values than the CWR group (p < 0.05). Comparing gagging sensation, the CCR group had lower values than the CWR group but there were no statistically significant differences between groups (p = 0.146). CONCLUSIONS: In conclusion, the results suggest that the circumferential comfortable retainer (CCR) might facilitate patient compliance and thereby improve the maintenance of the fixed orthodontic treatment outcome.
